Finish all 90 official classic levels on 'Experienced' difficulty

Finish the first 45 official classic levels on 'Experienced' difficulty

Be fast

Do a ranged triple kill

Do a ranged double kill

Kill a target using a projectile while falling

Kill a target in front and back of you in one jump

Create a nice, custom level in the editor

Create 10 custom levels

Publish 15 nice custom levels in the Steam Workshop

Play a custom level

Complete 10 custom levels that were created by other players

Complete 100 custom levels that were created by other players

Kill a target that is not on screen

High speed crash against a wall

Kill all targets of a level using projectiles only

Get more than 10 ranged kills in one level

Keep playing to discover this achievement

Complete a secret level

Keep playing to discover this achievement

Keep playing to discover this achievement

Less than one second difference to the current world record

Kill a target by shooting a projectile through a portal

Kill a target using a falling wall

Find a secret in a level

Complete a speedrun

Do more than 15 consecutive walljumps

Keep playing to discover this achievement

Keep playing to discover this achievement

Jump through a laserbeam when you can still feel the heat

Create a big custom level

Destroy a destructible wall using your body only

Do three double kills in one level

Play for 2 hours straight

Complete 5 speedruns